Pencil-sharpener and clamp.



J. M., M. A'..& T. H. CA

RTER. PENCIL smpmm AND 0 LAMP. APPLIOATIOK FILED APR, 9, 1910 PatentedAug. 23, 1910.

-- BEST AVAILABLEYCOPY "UNITED sTArnsragsNT orrion.

JAMES M. CARTER, MAURICE A. CARTER, AND THOMAS H. CARTER, OF LARIMORE,NORTH DAKOTA.

PENCIL-SHARPENER AND CLAMP.

Specification of Letters Patent.

Patented Aug. 23, 1910.

Application filed April 9, 1910. Serial No. 554,565.

To all whom it may concern:

Be it known that we, JAMES M. CARTER, MAURICE A. CARTER, and THOMAS H.Can- TER, citizens of the United States, residing at Larimore, in thecounty of Grand Forks and State of North Dakota, have invented certainnew and useful Improvements in Pencil-Sharpeners and. Clamps, of whichthe following is a specification.

This invention has for its main object a simple, durable and efficientconstruction of pencil sharpener which may be easily carried in onespocket, or be secured if desired, by a clamp of preferably novelformation, to a table or desk so as to serve as a stationary appliance.

With this and other objects in view as will more fully appear as thedescription proceeds, the invention consists in certain constructions,arrangements and combinations of the parts that we shall hereinafterfully describe and claim.

'4 is a detail perspective view of the socket member and a portion ofthe spindle which carries it; and, Fig. 5 is a transverse sectionalview, the section being taken through the socket i'nember.

Correspmnling and like. parts are re r-rred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

Our improved pencil sharpener comprises a body portion which in thepresent instance consists of a tubular handle 1 closed at. one end inany desired manner, and an 1 r 3 od nut 4 which is detachably or: ehandle as grooves that are formed on the interior wall of the nut at. Inorder to prevent the entire disconnection of the spindle and the nut,the spindle is provided at one end with a retaining ring '7 designed toengage the nut at the outer limit of movement of the spindle relativethereto.

On one end of the spindle 6 is formed or secured a tapered cup or socketmember 8, the same being formed with a longitudinal slot 9 and with alaterally extending bracket or ledge 10 at one side wall of the slot. Ablade 11 is adjustably connected by screws or similar fastening devicesto the ledge 10, the screws or the like working in lateral slots formedin the bar so that the cutting edge of the blade may be projected to thedesired extent over the slot 9. One of the screws or fastening devicesfor the blade is extended, as indicated at 12, to form a stud upon whicha preferably hooked latch 13 is pivotally mounted, said latch beingdesigned to be swung over into an opening 14 formed in the nut, wherebyto hold the spindle and socket member at the inner limit of theirmovement.

A helical spring 15 is inserted within the handle 1 and within thehollow or tubular portion of the spindle 5, the spring exerting atension to move the spindle outwardly, in an evident manner. In order toproperly hold the spring and prevent it from buckling, a rod 16 isinserted therein, the rod being secured in a concentric position withinthe handle 1. by any desired means.

From the foregoingdescription in connection with the accon'ipanyingdrawing, the operation of our improved pencil sharpener will beapparent. In the practical use of the device the pencil to be sharpenedis merely inserted within the cup or socket 8 and pressure is imposed onthe pencil in a longitudinal direction to thrust the spindle inwardlyrelative to the handle, this movement being obviously accompanied by therotation of the spindle about its longitudinal I a direction to shavethe wood and BEST AVAILABLE coPv is only necessary to first work the nut4: on the spindle 5 and to then secure the retaining ring 7 in place andto finally screw the nut into the hollow handle 1, it being, of course,understood that the spring will have been inserted in the spindle and inthe handle around the rod 16. By means of the latch 13, the spindle 6may be held retracted in the handle at the inner limit of the movementof the spindle, and the entire device will thus occupy very little spaceand may be conveniently carried in the pocket of the user. When thedevice is desired to be used, it is only necessary to disengage thelatch from the opening in the nut and the spindle will be moved out bythe spring 15 with the socket member 8 in readiness to receive the endof the pencil to be sharpened. It is to be understood, however, that thedevice is not limited to a portable construction or use, but that it mayalso serve as a desk attachment or accessory, and in such connection Wepreferably use a.clamp such as illustrated in Fig. 1. This clampembodies a preferably U-shaped body portion 17 preferably of springmetal adapted to be slipped over the edge of a desk or desk leaf, or theedge of a table or the like, one end of the body portion carrying a camlever 18 preferably with an engaging portion of rubber or the like, asindicated at 19. By this means the body portion may be securely on gagedwith the desired support. The other end of the body portion is extendedlaterally and returned upon itself to form a split or open sleeve 20,the end being curled upon itself, as indicated at 21, to receive a link22. An eccentric or cam lever 23 is secured to the link 22 so that thehandle 1 may he slipped into the sleeve with the cam lever 23 in aninoperative position and the relatively free end of the sleeve may thenbe drawn inwardly by swinging the cam lever 23 against the sleeve,whereby the sleeve will tightly grip the handle 1 and securely hold thepencil sharpener in place.

In order to catch the shavings, we have provided a tray 24 which isriveted or otherwise secured to the clamp 17 extending forwardlytherefrom underneath the socket member of the pencil sharpener. Thistra} is formed with side and end flanges 25 and designed to retain onthe tray a pan 26 to catch the shavings and lead dust, said tray beingprovided with a handle, as shown, so that it may be easily placed inposition and removed.

Having thus described the invention, what is claimed as new is:

1. The herein described pencil sharpener, comprising a body portionincluding a tubular handle, a spindle working in the body portion, andarranged for a rotary and longitudinal movement relative thereto, asocket member carried by the spindle and formed with a longitudinallyextended slot and a laterally projecting ledge at one side of the slot,a blade mounted on said ledge, fastening devices securing the blade tothe ledge, one of said fastening devices being extended to form a stud,and a hook latch pivotally mounted on said stud, the body portion beingformed with an opening with which the latch is designed to engage,whereby to hold the spindle in retracted position.

2. The herein described pencil sharpener, comprising a tubular handle, anut secured thereto, and a spindle working through the nut into thehandle, a socket member carried by the spindle and formed with alongitndinally extended slot, and a laterally projecting ledge at oneside of the slot, a blade mounted on said ledge, fastening devicessecuring the blade to the ledge, one of said fastening devices beingextended to form a stud, and a hook latch pivotally mounted on saidstud, the nut being formed with an opening with which the latch isdesigned to engage and a spring mounted in the handle and exerting anoutward tension on the spindle.

In testimony whereof, we aiiix our signatures in presence of twowitnesses.

JAMES M. CARTER. I.. 8.

MAURICE A. CARTER. [1,. s.]

THOMAS H. CARTER. [Ls] Witnesses O. A. HAznN,

FRANK J. VAN FLEET.

